不等式1/(x-y)+1/(y-z)y>z,且1/(x-y)+1/(y-z)不等号右边a/z-x应为a/(z-x)

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不等式1/(x-y)+1/(y-z)y>z,且1/(x-y)+1/(y-z)不等号右边a/z-x应为a/(z-x)不等式1/(x-y)+1/(y-z)y>z,且1/(x-y)+1/(y-z)不等号右边

不等式1/(x-y)+1/(y-z)y>z,且1/(x-y)+1/(y-z)不等号右边a/z-x应为a/(z-x)
不等式1/(x-y)+1/(y-z)y>z,且1/(x-y)+1/(y-z)
不等号右边a/z-x应为a/(z-x)

不等式1/(x-y)+1/(y-z)y>z,且1/(x-y)+1/(y-z)不等号右边a/z-x应为a/(z-x)
1/(x-y)+1/(y-z)=a
(y-x)/(y-z)+(z-y)/(x-y)-2>=a
-[(x-y)/(y-z)+(y-z)/(x-y)+2]

已知正数x,y,z满足x+y+z=xyz.求不等式1/(x+y) + 1/(y+z) + 1/(z+x)的最大值 已知x,y,z>0,求证:已知x,y,z>0,求证:(x+y+z)(1/(x+y)+1/(y+z)+1/(z+x))≥9/2 ,用均值不等式解答! 不等式1/(x-y)+1/(y-z)y>z,且1/(x-y)+1/(y-z)不等号右边a/z-x应为a/(z-x) 不等式1/(x-y)+1(/y-z)+a/(z-x)>=0对x>y>z恒成立,则a的取值范围 代数不等式(1)设x,y,z为正实数求证 3(x^3*y+y^3*z+z^3*x)= 数学不等式题:x.y.z属于R+,xyz(x+y+z)=1 求(x+y)(y+z)最小值 已知正数xyz,满足x+y+z=xyz 已知正数x,y,z满足x+y+z=xyz,且不等式1/x+y+1/y+z+1/z+x≤λ恒成立,求λ的取值1/(x+y)+1/(y+z)+1/(z+x)≤λ是这个 设X,Y,Z为正实数,求(1+2X)*(3Y+4X)*(4y+3z)*(2z+1)/(x*y*z)的最小值题没错,就是均值不等式用不了才问的所有X,Y,Z不分大小写(1+2x)(3y+4x)(4y+3z)(2z+1)/xyz (1)设x,y,z是正实数,且x²+y²+z²=9,证明不等式:2(x+y+z)-xyz ≤10;(2)设x,y,z是正实数,且(1/x)+(1/y)+(1/z)=1,求证:√(x+yz)+√(y+zx)+√(z+xy)≥√(xyz)+√x+√y+√z . 已知实数X.Y.Z满足(Y+Z)分之X+(Z+X)分之Y+(X+Y)分之Z=1,则(Y+Z)分之X平方+(Z+X)分之Y平方+(X+Y)分之Z平方的值为( ) 分解因式 4a(x-y)²-a²(y-x)³ (x+y+z)(x-y+z)+(y-x+z) (y-x-z)(1)4a(x-y)²-a²(y-x)³ (2)(x+y+z)(x-y+z)+(y-x+z) (y-x-z) 1.设有比例式:x/(y+z)=y/(x+z)=z/(x+y),有比例性质,得x/(y+z)=y/(x+z)=z/(x+y)=(x+y+z)/[(y+z)+(x+z)+(x+y)]=0.5x/(y+z)=y/(x+z)=(x-y)/[(y+z)-(x+z)]=-1,由此可得0.5=-1试分析推理产生错误的原因 不等式(x-2y+1)(x+y-3) 3(x-1)³y-(1-x)³z m(x-y)²-x+y x²(x+y)(y-x)-xy(x+y)(x-y) 因式分解 (x+y-z)(x-y+z)-(x+y+z)(x-y-z) (x+y-z)*(x+y-z)-(x-y+z)*(x-y-z)等于多少 (x+y+z)(x-y+z)+(y-x+z)(y-x-z)求过程 1、y-x/x²-y²2、(x-y)(y-z)(z-x)/(z-y)(y-x)(x-z)